Fore sight for firearms.



- and fzit rue in the iiizirksiiuin.

BEST Armeen; cof-f' Wirren eriefriee retentir @eee eieiiir ieee: Nominee no. esente.

y Speccsttion o' 'Lettere Patent.

il minted tiet. i.

Applicritlomiled December 23, 1902:). Emiel No. .SBSBB, A'

To all whom it may concern:

Be it'lmown that I, DoMonAN BLA Koi iro'rovio, e subject of the Emperor of Austria-Hungary, residing et Weriiedin, in the i?rovince of Croeti, iii the Empire of Austritt Hungary, have invented certero new and use fulv Improvements in Fore Sights for Firearms; and I do hereby declare the iollowing to he ai fu1l,cle2ir, and exact descri tion of the invention, suoli es will enable ot ers skilled in the nrt to which it epperteins to ineke sind use the some, reference being hed to the eccomi piinyiiig drawings, und to letters or iigures of reference marked thereon, which forni ri port of this speciiiciition.

In firearms the sighting is usually effected hy bringing the point of the fore sight laterally into line with the center of'the slidedirir and vertically into line with the upper or sight edgethercof. This kind of sighting is celled sighting withhhinksiglitY is usually the ense with military firearms. tlic'i'ore sight is oi' considerable height, its adjustment. in. relotion to thc liiick sight subject to co'iieidn crzihlc viii'iziiioii, especially in the vertical direction, und the iiuirlasimm is consequently coiiipcllcd, piirticuhirly iii strong siuili lit or while sighting fi 1novingoliject,hrst to evote his entire attention to the adjustment of the fore sight in rclzitioii to the iiiici sight end then t0 the correct sighting of the object, which causes losscf tiiiic iii eighting, delay in the discharge of `the shot, :uid uncertainty In most crises the mer isinen will trike too coarse iiloi'e sight, as there :ire no conspicuous iixcd points to enable him to determine when thc correct elc- Vatioii the fore sight hes been exceeded.

Novi? s. fore sight according to this invention is iidiiptcd to render obvious any deviction from correct siglitin' f und to facilitate the rapid and correct te ing of the blank sight. g To this ond the fore sightZ which is slid into the sight-block in the usual manner, has e broad ur per edge and is provided with o, ledge, whic entende from it towerd the back sight and above which it vprojects only so sli htly that when the sighting is correct two s allow gaps of equal sizes appear in the back-sight slide-heir to the right end left of the broad fore sight. When, however, the sighting is too course, the ledge becomes visible above the sight edge o'f the back sight, and when there is lateral deviation in the sighting one of the eps in the back sieht d isappears or diminishes, while the ot er m- .specti'i/c View of the whicliis sshd into the i i broad upper edge, sii projects there i ied end tlic extent to whici'i it creases in proportion' to' the from correct siiglitings The eeconopen)v img; drewi'i er exemple the improved foie to hond firearms, l

Figuresl end Z ere espectiveg'v front elevation of ci foie' eigiitiii with this invention, r end oi' the barrel oi' tie sightisetteoh "ii'iigjete en finie-rigged ecrite,l no:I rtioiniic reietioii to the notch ci ti rect und incoriiict Sighting.

fore eight.

sivht is orovided one e i n i x il ie the hack sight. 'l he lireiiritii o ledge b nre euch that wi. hliinr: slgiit the lower endsportion o fippcer to coincide *i the notch of the herrie-:iight smell raps Ii eppeering rit ogipoeite the upwardly-projecting portion o. Erft? means the ritteiiiiiicnt of correct elerettow greatly iicil" etcd, since the edjiietirieiit the upper edge of the portion in reietion to the sight edges of the slide-hair c ceri he ec coiiiiilislied witlmgretitcr cerieinty and. rst pidity than the iifliustment ci the point of eef ordiiieryiore glit, especially es the eppure-nt distance of this point from the aight edges of. the slidc-iifir is imieiiierulily greater than the apparent distri-nce of the hroiid uniicr edge oi: zi sight, according to this invention, iron). the sighting edges oll the heck sight,

lf too cofirse fi sight is teilen, Fig. Il, t ie grips 3 disappear ind the ledge appears above the sight edges of the been-eight slideliiir c. 'ilio inrit-,curing ol the sighting .is time rendered more distinctly Ieppiirent to the nierksnizui. This is not the crise vif'hen en or diniiry fore sight is used, iis the gripe 3 then ro main visi ile.

In the case of leterel deviation from the correct line of sight, Fins. 5 end e, one or the other ofthe gri s 3 will tdiminish or dieeopeer, while the visi le gzip will nppeerthe liirger the enter the error in the sighting. i

T e ledge b pro'ects from the rearward seri face of the fore sight towerd the heck sight, find thereby protects the upper portion c of the fore sight from injury and provento it ieg ' solely /of-the rearsight notch must from becoming rapidly polished and Worn sway. The under side of the ledge b is ree cessed in order to avoid disturbing reflec tions when sighting. g 5,3

The above-described arra ement liii' the foresight can obviously be a a ted also to ordnance, machine-guns, and ot er firearms Without deviating from tho' essence of the invention. s

Perfectly sure aiming cannot be attained with the broad upper edge of 'the sightblock. The'broad up er edge ofthe sightblock arranged scoort' must be combined with such a'- sn'all height of the fore sight a itself, which during the nming obtains a trapezoid shape, that when aiming with blank sight the ends' ofthe lower edge of the sight a pear to' be resting' on the lines of the notch olgthc rear sight, so that the lateral parts of the ledge l), which on either' side form the continuation of the sight-block a, are notvisible through th e sid notch oftherear si ht. in other` words, when' aiming with b ank sight according to the.present invention the bottomward converging-lines ass'exactly through the apexes of thetwoobtuse angles,

which, as can be clearly seen from Fig. 3 of the drawings, are formed by the' bottom ward divergi sides of the sight-block a and by the'forwa during thel aiming appears as' a' horizontal line'. When sighting with ai fine sight in the wsse of the appliccnts invention, the least lowering of the muzzle and the leastl deviation toward fine sighting will have for result that the two triangular sight-gas on the right and on the lett of the sightloc'k will appear' considerably snieller and when fine sight, properly speaking, is taken they will dissp eer entirely, ey circumstance which is bonn' 'to be perceived at .once by the merke-` man.

I claim ing to this invention' surface of the ledge b, which.

i ledge and a projection on the ledge, 'saidl lg e extending laterally fromI auch' side of the projection, and said'projecton substantially trapezoidat in contour and having a broadI upper surface set transversellyl' line of sight, said projection 'of vsuc height thatwhen aiming with blank sightthe lower ends of the sides thereof coincide with the lines of the notch of the rear sight, so there will appear at therightand left of the prov jection two small obtuse angularIy-shaped 'g s of equal size, and b' aimin 'with-coarse' sight that part of thel edge lying near the lower ends of the sides of the sight-bloeit closes the sight/ge s and becomes visible in,A or over' the sight e e of the rear si ht.

sigh -block comprising a rearwardly-extend# incr ledge and e projection on the ledge, said ledge extending laterally from each-side of the projection, and said projection substen tially trapezoidal in contour and havig a' line of sight, said fore sight having the rear surface thereof nearly vertical in order toobtain sharp contours of the sa'rne, said ledge having its lower surace'rounded out on its rear side, and said projection of such height 'that when aiming with blank sightv the lower ends of the sides thereof coincide' with the' lines ofA the notch of the' rear' sight, sothe're will appearat the right and left ofthe projection two smellfobtuse angulady-shapedy of equal size, and by aiming with coarse sugli;` that po'rt of the ledge lying'neal* theflvwi ends of the sides of the slght-block closes the sight-gaps and becomes visible in or over the sight edge of the ree'r sight.

In testiniori;r that I claim the foregoing'as my 'invention have signed-'my name in presence oftwo subscribing witnesses.

DUMOBRAN Bitti ii'oiprov'io.

ALvEs'ro S. T1 been;

broad upper surface set transversely to 'the' 

